Riveting-machine.



@MW l E. F. SHUSTER.

RIVETING MACHINE. APPLl'cATloN man 11011.22, 191s.

1,246,170. Patented N0v.13,1917.

2 SHEETS-SHEET I.

wlmfssfs.- v nvm/Tof? mlma E. F. SHUS'TER.

RIVETING MACHINE. `APPLICATION FILED NOV. 22| 1916.

1,246, 170. A Patented Nov. 13,1917.

2 SHEETS-SHEET 2.`

W/TNESSES; IN VEN TUR Mfwm ZW @T6/iam @MQW AHORA/Ey nti/rena r, slits/TER', or NEW navnmgcoivlN-Ecricur.

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T70*- alrlavhowrtmayl concer/af; Be it vknown that I, ELuoRE andSptate of Connecticut, :have invented `cerv tain new and useful Improvementsm Riveting-Machines andlldoahereby: declaretheY (following to be arf-ull, clear, and f'exact description ofthe invention, suchY as willen-5 yable others skilled in the art to which .1t-f fppertains Ito make and ruse the esame... l

My inventionrelates to an improved rivet.,

ing machine of simple and compact construction `and increasedfefliciency of operation.

Referring 'to the accompanying drawings: A

v the driving belt; and

Fig. 4 is a detail view of the driving shaft.

1 represents the standard or frame, and 2 the housing integral therewith. 3 is the removable cover secured to the housing by the screws 4. The driving shaft 5, Figs.,3 and 4, is journaled in the hub 6 of the hous-V ing and it carries at one end and within the housing the grooved head 7 carrying the hammers 8 freely mounted on the pins 9. 10 is a cone pulley secured to the reduced portion -5a of the shaft by the key 11. On the long hub 12 of this pulley is rotatably mounted the clutch pulley 13 provided with the peripheral groove 14 for the belt 15 and the clutch groove 16, presently to be more fully explained.

The head 7 is securely mounted on the reduced portion 5b of the driving shaft and is rmly held against the shoulder 17 by the nut 18. The head 7 also abuts against the face of the inner hub 19 of the housing and the cone pulley 10 abuts against the face of the hub 6 of the housing and the shoulder 20 of the shaft. The hub y12 of the cone pulley 10 is a trifle short of the rear shoulder 21 of the shaft so that, when the nut 22, Fig. 2, is brought firmly against said :i shoulder, the ishaftwillrotatefreely in its y SHUS'TE'R, a v'citizenuofftheUnited. States, :residing at.

New Haven, in the county :of sNew Haven bearing. 1 Y

The. operating rod 23 i is? slidably .mounted in theframe and boss 24 projectingftherefrom? 25 isa'fclutch lever adj ustablymbunted onthisrodoperativelyf connected with Speciiiaton of Letters Eatent, y

'Application le'dINovenibe'r' 22,191.6.-5Seria1No. 132334.l l i ythe clutchfpulley. 13 through the medium `of Y the ring 26 enga-ging f the' v{before mentioned-fi` a'brake'lever 'adjustably mounted'on the' rod 23;and 'carries atit'sr .upper fi'feeend thei i pad f28, pivotedto fsaidl lever by the' V"29.3' 30 'is a .fork :leverx'pivotally supported oiiiV the, zpi-n 31 Iofnthe ears-L32Hprojecting ifroir'rv the machine frame. This lever embraces thek "pin 33 securedto 4rod 23; 34-is Jche tread-le' rodladapted to connect with a foot treadlenot shown. j

35 is hammer rod passing through the bushing 36 mounted in the frame and has the usual vertical and rotatable movement common to machines of this character. This rod is rotatably connected to the worm gear 37 and is normally elevated by the spring 38, Fig. 2. The worm gear is rotated byy means of the worm 39, Fig.v 1, mounted on the cone pulley 10 vthrough the medium ofl the before mentioned clutch lever 25, and at the same time withdraw the pad lever 27. This movement of the rod 23 will cause the hammer head and its shaft to rotate, and

as the hammers are freely mounted on theirv sup-ports, they are held in operative position with respect to the hammer rod 35'by centrifugal force, and as each hammer strikes the end of the hammer rod it is thrown back by the force of the contact -a distancesuicient to clear the rod, when it will kresume its outward position vby said centrifugal force. The face 44 of each hammer is tapered so as to impart a glancing blo-w to the hammer rod rather than a direct blow which would cause the hammers to rebound with such force as to require the use of springs to absorb this rebounding force. Theluse of springs for this purpose is objectionable on account of their tendency to crystallize in a short time. The instant the treadle is released, the spring 45 will return the rod 23 and break the engagement of the cone pulleys and also bring the pad 28 against the vertical face of the cone pulley l0 to stop the machine.

The anvil 46 is adapted to support the work and is adjustably mounted in the frame by the screwT 47, and held rmly in any of its adjusted positions by the set screw LIS.

Having thus described my invention, what I claim is:

l. A riveting machine comprising a trame surmounted by a housing having a hub,ta

driving shaft Journaled 1n said hub, a cone pulley having a hub mounted on the shaft and secured thereto, a clutch-pulley journaled on the hub of the cone-pulley, a ver tically operated hammer rod, means for rotating the same from the cone-pulley, a head mounted on the shaft and Within the housing, a series of hammers pivotally mounted in the head, the striking face of the hammers tapered so as to deliver a drawing 25 blow to the hammer rod.

2. A riveting machine comprising a frame surmounted by a housing having a hub, a driving shaft journaled in said hub, a centrifugal hammer mounted on the shaft and 30 a vertically operated hammer rod, and 49 means for rotating the same from the conc pulley.

In testimony whereof I aX my signature.

ELMORE F. SHUSTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

